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Overheat LED when booting

I've installed a Supermicro X7SLM-L motherboard into a 1U short depth chassis, and when powering up get no video - no beeps, nothing. Just the LED indicating overheating (solid red) and that's it. As far as I can tell, I've installed everything correctly. I've also reset the BIOS, removed and reinstalled the SATA connection to the HD, reseated RAM, reseated the CPU, etc. CPU is Intel Core 2 Duo E8200 (2.66GHz).
I've searched fruitlessly elsewhere and am now stumped. Any help would be greatly appreciated!
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  1. Best answer
    That motherboard probably does not support the E8200. Super Micro indicate that it supports an Intel Core2 Duo E4000 Series CPU only.
  2. Thank you - I did finally figure out there was a CPU/MB incompatibility having to do with FSB speeds. Oh well.
    Thanks again for the response - it is appreciated!
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